ChipApex | Global Electronic Components Supplier
SEARCH
Search Product
Search Post
— IC芯片 | 连接器 | 传感器 | 被动器件 —
Consult the customer manager about the wholesale price.
consultation hotline：86-132-6715-2157
email：[email protected]
Contact the product manager for consultation. One-stop consultation is available.
Do you want a lower wholesale price? Please send us your inquiry and we will reply immediately.
Product Detailed Parameters
- Description：AUTOMOTIVE, 12-V, 8:1 ONE-CHANNE
- Series：-
- Mfr：Texas Instruments
- Package：Tape & Reel (TR),Cut Tape (CT)
- Switch Circuit：SP8T - Open
- Multiplexer/Demultiplexer Circuit：8:01
- On-State Resistance (Max)：240Ohm
- Channel-to-Channel Matching (ΔRon)：2Ohm
- Voltage - Supply, Single (V+)：5V ~ 24V
- Voltage - Supply, Dual (V±)：-
- Switch Time (Ton, Toff) (Max)：110ns, 85ns (Typ)
- -3db Bandwidth：430MHz
- Charge Injection：2pC
- Channel Capacitance (CS(off), CD(off))：3pF, 9pF
- Current - Leakage (IS(off)) (Max)：-
- Crosstalk：-90dB @ 1MHz
- Operating Temperature：-55°C ~ 125°C (TA)
- Mounting Type：Surface Mount
- Package / Case：16-WFQFN Exposed Pad
- Supplier Device Package：16-WQFN (3.5x2.5)
- Number of Circuits：1
- Grade：Automotive
- Qualification：AEC-Q100
Download product information
Overview
The TMUX4051BQBRQ1 is an automotive-grade, 8:1, 1-channel CMOS multiplexer from Texas Instruments. It operates with a single supply of 5 V to 24 V or dual supplies up to ±12 V. The device supports bidirectional analog signals ranging from VSS to VDD and features 1.8 V logic compatibility. Key electrical parameters include a maximum on-resistance of 1050 Ω at 5 V and 240 Ω at 24 V. It offers a typical bandwidth of 430 MHz, off-isolation of -95 dB, and low capacitance of 3 pF. The component is qualified to AEC-Q100 standards for ambient temperatures between –55°C and +125°C.
Feature Summary
- AEC-Q100 qualified for automotive applications with extended temperature range
- Bidirectional signal path supporting rail-to-rail operation
- 1.8 V logic compatible thresholds for TTL and CMOS interfaces
- Break-before-make switching prevents input shorting during transitions
Applications
- Battery management systems (BMS)
- HVAC control modules
- Telematics units
- On-board chargers and wireless charging systems
Procurement Notes
Verify the specific ordering suffix BQB corresponds to the WQFN-16 package configuration required for the design. Confirm that the Q1 suffix indicates AEC-Q100 automotive qualification status. Ensure the voltage ratings align with the system's power supply rails before finalizing procurement specifications.
Selection Notes
Select this component when high-voltage analog switching up to 24 V is required in automotive environments. The wide supply range accommodates asymmetric configurations. Consider the thermal resistance metrics if operating near the upper temperature limits. Verify logic level compatibility with the controlling microcontroller to ensure reliable address decoding.
Part Context
This part belongs to the TMUX405x-Q1 family, which includes the TMUX4052-Q1 variant. It serves as a direct pin-compatible replacement for industry standard 4051 multiplexers while offering improved performance characteristics such as lower capacitance and higher voltage tolerance suitable for modern automotive architectures.
Replacement Considerations
The datasheet explicitly states pin compatibility with industry standard 4051 multiplexers. Designers replacing legacy parts should verify that the higher voltage rating and logic thresholds do not conflict with existing circuit constraints.
